Explosive-engine.



L/ wz/@ /lf n L. SCOTT.

-BXPLOSIVE ENGINE.

APPLIGATIDN FILED om'. 22, 1912.

1,097,475. Patented May 19, 1914.

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` L. SCOTT. BX'PLOSIVE ENGINE.

APPLICATION FILED OUT. 22, 1912.

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ggg@ mf gud/Mo@ @wi/humo@ l toa-vara 'il e Zh @Zt/whom 'it may lconcern Be it known that 1, Lignano Scorr, a citi zen ot the United States, residing at St.

. its objects the provisionoiE an improved construction of*y explosive engine comprising a head secured within the cylinder and providing a cup-shaped piston within which the explosions take place, the ead within the cyiinder having a water jacket to keep it cool during the operation of the engine. Another fea-ture of my improved engine consists-'in providing a means for throttling theexplosivemixture so that the pressure of the mixture is not impaired, the throttling being done at the entrance to the cyiinder instead oi at the entrance to the compression chamber.

iftnotherol'iject of my invention is the provision of an improved .valve and operating mechanism by which the full charge is maintained withinthe compression chamber at all times. i 4

` My invention will be described in detail' hereinafter and illustrated in the accompanying' drawings, in which,

Fig-ure 1 is a view in elevation of an engine cylinder constructed in conformity with my invention; Fig. 2, a vertical sectional view of the engine cylinder and crank case; and Fig. 3, a vertical sectional view on the plane 90 removed from the plane of the section in Fig. 2.

1n the drawings similar reference characters will be used to designate corresponding` parts throughout the yseveral views.

My improved explosive motor comprises a crank case 1 and an engine cylinder 2 mounted on the crank case and having its lower portion 3 extended into the crank case. The upper portion of the cylinder 2 is formed with double walls spaced apart to provide a Water jacket 4f surrounding the cylinder, and the lower extension 3 is also provided with a water duct 5 to Jfeed water to a head 6 mounted in the cylinder 2, said head having double walls as shown to providea water jacket 7 and having downvvardiy extending. legs 8 with laterally eX? Specification of Letters Patent.

Application led October 22,

Patented tiny to, tet-t, 1912. Serial lilo. '727,19,

tending danges 9 that are secured to the iower end ot the extension 3 of the cylinder 2, said legs S and danges 9 being double walled to provide a water duct 10 to snp. ply the water jacket 7 in the head G, the iower end ot the extensions 3 and the flanges 9 being provided withalined openings 11 through which the water passes between the water ducts 5 and the conduits 10. The. inner wall oi the cylinder 2 is extended upwardly as shown at 12 and forms an anni-1'- lar Hangs within the cylinder head 13 and is provided with a series of openings 1d to supply the interior of the piston to be hereinafter described with the explosive mixture from the chamber 15 within the cylinder head 13. ldfounted withinl the cylinder 2 is the piston 16 that is oi the inverted cupshaped type and reciprocates between the `upper portion of the cylinder 2 and the head G, said piston being provided with the packlng rings 17 hearing against the inner wall of the cylinder 2' and the head o being pro# vided with packing rings 1d that bear against the inner walint the piston 16.

19 indicates the crank shatt suitably jour naled in the crank case l and 20 the piston rod connecting said crank 19 and a cross pin 21 secured to the lower end oi' the piston 16, the lower portion of the cylinder 2 being slotted as shown at 22 to permit reciprocation of the piston 16. The upper portion of the piston 1G is provided with a pluralityof openings 23 that are adapted to aline with the openings 141 in the flange 12 at the upper end of the cylinder 2 when the pist-0n 16 is 'in its uppermost position to permit the explosive mixture within the chamber 15 to enter the piston 16 while24: indicate other openings in the piston 16 that are adapted to register with exhaust ports/25 in the cylinder 2 when theopenings 23 are positioned as shown in Fig. 2 to admit the explosive mixture to the piston as heretofore stated.

2G indicates a valve casing communicating with the chamber 15, and 27 a rotary valve mounted within said valve casing and adapted to supply an explosive mixture to the chamber 15 during the operation of the engine. 'The valve 27 is rotated from the crank shaft 19 by means of a shaft 26 suitably journaled on the engine casing and provided with beveled gears i0 connecting one terminal of the shaft 26 with the crank shaft 19 and other beveled gearing 28 conwithin thev piston.

necting the other terminal ofthe shaft 26 with the valve. The valve 27 is s0 timed that during the operation of the engine the valve will be opened to admit the explosive mixture to the chamber when the crank shaft 1.9 has turned about Fo from the position shown in Fig. 2 and the valve will remain open while the crank shaft is passing through a segment of 200, or until it has turned about o on the up stroke of the piston 16. f

In the operation of. the engine, it Will be understood that the piston being inthe position shovvn in Fig. 2, the interior of the piston 16 will be supplied with an explosive mixture from the chamber 15 through the ,openings Mund the alined openings 23 in the piston 16 and the entrance to the eXplo sive mixture to the piston will serve to drive out through the openings Q4 and the eX- haus-t ports 25, all of the exploded gases rl`he piston will then proceed downwardly 'and compress the gases therewitliin against the head 6 and when the piston reaches the lower-most portion of its stroke and is about to return the charge within the cylinder will be tired by the spark plug 29, one of the openings 23 being at this time in alinement with the spark plug. The explosion within the piston 16 ivill serve to drive the piston upwardly and when y the piston returns to the position as shown in Fig. 2, the operation will be repeated as heretofore described. In order to control the amount of explosive mixture entering the piston 16, I provide a valve comprising a dome-shaped ea) slidably mounted on the liange 12 and having top wall 31 with a central bearing 32'in which is rotatably mounted the lower end of a valve rod 33, said valve rod being threaded as shown at 34- to engage a threaded nut 35 mounted in an opening 3G in the cylinder head 13 and having anoperating arm 37 secured thereto for actuating said valve rod 33.

In operation, it Willbe apparent that when the dome-shaped cap 30 is in its raised position shoivn in Figs. 2 and 3,

the openings 14 are entirely exposed to ad- 'mit a full charge to the interior of the piston 1G. When it is desired to limit the charge the dome-shaped cap' 3() may be moved downwardly by rotation of the valve rod 33 to regulate the space through which the explosive gases are permitted to pass to enter the piston 16.

Having thus described the invention What I Claim is 1. In an explosive engine7 a cylinder, a head rigidly mounted Within said cylinder, an inverted cup-shaped piston'reciprocally mounted therein and provided Withapertures near its upper end, an annular fiange on said cylinder, said iange being provided with apertures adapted to register with the apertures in saidpiston and means for controlling the iow of apertures. l

2. In an explosive engine, a cylinder', a head rigidly mounted in said cylinder, an inverted cup-shaped piston reciprocating in the cylinder and provided with apertures therein, an annular` flange on said Cylinder and provided with apertures adapted to register with the apertures in said piston, a dome-shaped cap slidably mounted on said annular fiange adapted to regulate the intake of gas to the pist-on.

3. In an explosive engine.,` a cylinder, a head rigidly mounted therein, a. piston reeiproeally mounted insaid cylinder, an annular flange on the cylinder, means for allowing the intake of gas in said piston, a dome-shaped cap adapted to surround the annular flange and forming a. head for said cylinder, a rod Connected to the cap and means for actuating said rod whereby the cap will be caused to reciprocate on the iiange to regulate the intake of In testimony whereof I atiix my signature in presence of tivo Witnesses.

LELAND SCGTT.

gas through the saidv 

